Fig.1 - This annealed cartridge brass, Cu-30Zn, was prepared using the traditional method, and the process included multiple etch-polish cycles (Klemm’s I reagent, 100X).

Fig. 2 - Annealed cartridge brass prepared by the traditional method,followed by vibratory polishing with an attack polish agent in colloidal silica with multiple etch-polish cycles. This yielded a scratch free surface by excessive relief (Klemm’s I reagent, 20X, DIC.)

Fig.3 - Annealed electrolytic tough-pitch copper prepared by the contemporary method plus a brief vibratory polish (Klemm’s II reagent, 50X, crossed-polarized light with light use of sensitive tint.)

Fig 4. - Annealed and cold drawn arsenical, phosphorus-deoxidized copper prepared with the contemporary approach (Klemm’s I reagent, 50X, crossed-polarized light plus sensitive tint).

Fig. 5 - Cold worked cartridge brass, Cu-30Zn, prepared by the contemporary method, showing heavy slip deformation (Klemm’s I reagent, 100X, nearly crossed-polarized light with sensitive tint.)

Fig. 6 - Partially recrystallized cold-worked cartridge brass, prepared by the contemporary approach (Klemm’s III reagent, 100X, nearly crossed polarized light).

Fig. 7 - Annealed cartridge brass (same specimen as Fig. 1), prepared with the contemporary approach (Beraha PbS reagent, 50X, crossedpolarized light plus sensitive tint.)

Fig. 8 - This photomicrograph shows the dendritic as-cast microstructure of chill cast tin bronze, Cu-10Sn, prepared with the contemporary method (Klemm’s I reagent, 500X, bright field).

Fig. 9 - This dendritic microstructure of sand-cast hypoeutectic Cu-4.5P as revealed when prepared by the contemporary method (Klemm’s II reagent, 200X, bright field).

Fig. 10 - Same specimen as shown in Fig. 9, but in cross-polarized light plus a sensitive tint plate.

Fig. 11 - Dendritic microstructure of sand-cast hypereutectic Cu-10.5P is clearly shown when prepared by contemporary method (Klemm’s II reagent, 500X, bright field).

Fig. 12 - Microstructure of Everdur, Cu-3Si-1Mn, cold drawn to half hardness, prepared by the contemporary method (Klemm’s reagent, 100X, cross-polarized light plus sensitive tint).

Fig. 13 - Microstructure of cold worked phosphor bronze, Cu-5 Sn-0.15P,prepared using the contemporary method (Klemm’s II reagent, 200X, crossedpolarized light plus slight sensitive tint.)

Fig. 14 - Microstructure of annealed aluminum bronze, slightly hypoeutectiod, prepared by the contemporary method (equal parts NH4OH and H2O2, 50X, crossed-polarized light.)

Fig. 15 - Martensitic microstructure of quenched aluminum bronze is revealed when prepared by the contemporary method (200X, crossed-polarized illumination plus light sensitive tint).

Fig. 16 - Microstructure of as-cast beryllium bronze prepared by the contemporary method (Klemm’s I, 100X, bright field).

Fig. 17 - Microstructure of solution annealed and aged beryllium bronze prepared with the contemporary method (equal parts NH4OH and H202, 200X, crossed-polarized light plus a sensitive tint plate).